/* =====================================================================
   NCI · Netze Corporate Intelligence
   Hoja de estilos principal — estética "tech analytics"
   Autor: construcción asistida para NCI
   ===================================================================== */

/* ---------- 1. Tokens de diseño ---------- */
:root {
  /* Paleta base: lienzo claro profesional + acento técnico contenido.
     Fondo claro elegido deliberadamente: el logotipo tiene glifos oscuros
     (#3D3D3D) sobre fondo TRANSPARENTE — verificado midiendo canales RGBA —
     de modo que sobre claro se renderiza nativo, sin filtros ni modos de fusión. */
  --bg-0: #ffffff;
  --bg-1: #f6f8fc;
  --bg-2: #eef2f9;
  --bg-3: #e5eaf4;

  --line: #dde4ef;
  --line-soft: #eaeff7;
  --line-bright: #c4cfe2;

  --txt-0: #0d1526;
  --txt-1: #35425c;
  --txt-2: #55637e;
  --txt-3: #7d8aa3;

  --accent: #0d9488;
  --accent-dim: #0f766e;
  --accent-soft: rgba(13, 148, 136, 0.08);
  --accent-glow: rgba(13, 148, 136, 0.18);

  --signal: #2563eb;
  --alert: #dc2626;
  --warn: #d97706;

  /* Sombras sutiles: en fondo claro la profundidad se logra con elevación,
     no con contraste de color. */
  --shadow-sm: 0 1px 2px rgba(13, 21, 38, 0.05);
  --shadow-md: 0 4px 16px -6px rgba(13, 21, 38, 0.1);

  --radius: 10px;
  --radius-sm: 6px;
  --radius-lg: 16px;

  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-mono: 'JetBrains Mono', ui-monospace, 'SF Mono', Menlo, monospace;

  --wrap: 1180px;
  --header-h: 74px;

  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

/* ---------- 2. Reset y base ---------- */
*, *::before, *::after { box-sizing: border-box; }

html { scroll-behavior: smooth; scroll-padding-top: calc(var(--header-h) + 16px); }

body {
  margin: 0;
  background: var(--bg-0);
  color: var(--txt-1);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.65;
  font-weight: 400;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

img { max-width: 100%; display: block; }

h1, h2, h3, h4 {
  margin: 0 0 0.6em;
  color: var(--txt-0);
  font-weight: 600;
  line-height: 1.2;
  letter-spacing: -0.02em;
}

h1 { font-size: clamp(2rem, 4.6vw, 3.5rem); font-weight: 700; letter-spacing: -0.035em; }
h2 { font-size: clamp(1.5rem, 2.9vw, 2.3rem); letter-spacing: -0.028em; }
h3 { font-size: 1.1rem; }

p { margin: 0 0 1em; }
p:last-child { margin-bottom: 0; }

a { color: var(--accent); text-decoration: none; transition: color 0.2s var(--ease); }
a:hover { color: #7af5dd; }

ul, ol { margin: 0; padding: 0; list-style: none; }

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
  border-radius: 3px;
}

::selection { background: var(--accent); color: #ffffff; }

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--accent);
  color: #ffffff;
  padding: 10px 18px;
  font-weight: 600;
  z-index: 999;
}
.skip-link:focus { left: 8px; top: 8px; }

.wrap {
  width: 100%;
  max-width: var(--wrap);
  margin: 0 auto;
  padding: 0 24px;
}

/* ---------- 3. Tipografía auxiliar ---------- */
.eyebrow {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--accent);
  margin: 0 0 1.1em;
  display: flex;
  align-items: center;
  gap: 10px;
}
.eyebrow::before {
  content: "";
  width: 26px;
  height: 1px;
  background: var(--accent-dim);
  flex-shrink: 0;
}

.lead {
  font-size: 1.03rem;
  color: var(--txt-2);
  max-width: 68ch;
  margin: 0;
}

.accent { color: var(--accent); }

/* ---------- 4. Botones ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 9px;
  padding: 13px 26px;
  font-family: var(--font-sans);
  font-size: 0.93rem;
  font-weight: 600;
  letter-spacing: 0.01em;
  border: 1px solid transparent;
  border-radius: var(--radius-sm);
  cursor: pointer;
  text-align: center;
  transition: all 0.22s var(--ease);
  white-space: nowrap;
}

.btn-primary {
  background: var(--accent);
  color: #ffffff;
  border-color: var(--accent);
  box-shadow: var(--shadow-sm);
}
.btn-primary:hover {
  background: var(--accent-dim);
  border-color: var(--accent-dim);
  color: #ffffff;
  transform: translateY(-1px);
  box-shadow: 0 8px 22px -8px var(--accent-glow);
}

.btn-ghost {
  background: transparent;
  color: var(--txt-1);
  border-color: var(--line-bright);
}
.btn-ghost:hover {
  border-color: var(--accent);
  color: var(--accent);
  background: var(--accent-soft);
}

.btn-sm { padding: 9px 18px; font-size: 0.85rem; }
.btn-block { width: 100%; }

/* ---------- 5. Encabezado ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--line-soft);
  transition: border-color 0.3s var(--ease), background 0.3s var(--ease), box-shadow 0.3s var(--ease);
}
.site-header.is-scrolled {
  background: rgba(255, 255, 255, 0.96);
  border-bottom-color: var(--line);
  box-shadow: var(--shadow-sm);
}

.header-inner {
  display: flex;
  align-items: center;
  gap: 28px;
  height: var(--header-h);
}

.brand { display: flex; align-items: center; flex-shrink: 0; }

.brand-logo {
  height: 38px;
  width: auto;
  /* Renderizado nativo: el archivo tiene fondo TRANSPARENTE (verificado por
     medición de canales RGBA) y glifos gris oscuro, por lo que sobre fondo
     claro no requiere mix-blend-mode ni filtros correctivos. */
  transition: opacity 0.25s var(--ease);
}
.brand:hover .brand-logo { opacity: 0.82; }

.nav-desktop {
  display: flex;
  align-items: center;
  gap: 4px;
  margin-left: auto;
}
.nav-desktop a {
  color: var(--txt-2);
  font-size: 0.88rem;
  font-weight: 500;
  padding: 8px 13px;
  border-radius: var(--radius-sm);
  transition: color 0.2s var(--ease), background 0.2s var(--ease);
}
.nav-desktop a:hover {
  color: var(--txt-0);
  background: rgba(13, 21, 38, 0.045);
}

/* Página actual: se marca con aria-current y se refleja visualmente */
.nav-desktop a[aria-current="page"],
.nav-mobile a[aria-current="page"] {
  color: var(--accent-dim);
  font-weight: 600;
  background: var(--accent-soft);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-left: auto;
}
.nav-desktop + .header-actions { margin-left: 0; }

/* Selector de idioma */
.lang-toggle {
  display: flex;
  align-items: center;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  overflow: hidden;
  background: var(--bg-1);
}
.lang-btn {
  background: transparent;
  border: 0;
  color: var(--txt-3);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  padding: 7px 12px;
  cursor: pointer;
  transition: all 0.2s var(--ease);
}
.lang-btn:hover { color: var(--txt-1); }
.lang-btn.is-active {
  background: var(--accent-soft);
  color: var(--accent);
}

.menu-btn {
  display: none;
  background: transparent;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  color: var(--txt-1);
  font-size: 1.05rem;
  width: 40px;
  height: 40px;
  cursor: pointer;
  align-items: center;
  justify-content: center;
  transition: all 0.2s var(--ease);
}
.menu-btn:hover { border-color: var(--accent); color: var(--accent); }

.nav-mobile {
  display: none;
  flex-direction: column;
  gap: 4px;
  padding: 12px 24px 22px;
  border-top: 1px solid var(--line-soft);
  background: var(--bg-0);
}
.nav-mobile a {
  color: var(--txt-1);
  font-size: 0.95rem;
  font-weight: 500;
  padding: 12px 4px;
  border-bottom: 1px solid var(--line-soft);
}
.nav-mobile a.btn { border-bottom: 1px solid transparent; margin-top: 14px; }
.nav-mobile[hidden] { display: none; }

/* ---------- 6. Hero ---------- */
.hero {
  position: relative;
  padding: 88px 0 72px;
  overflow: hidden;
  border-bottom: 1px solid var(--line-soft);
}

.hero-grid-bg {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(13, 148, 136, 0.055) 1px, transparent 1px),
    linear-gradient(90deg, rgba(13, 148, 136, 0.055) 1px, transparent 1px);
  background-size: 62px 62px;
  mask-image: radial-gradient(ellipse 90% 70% at 50% 0%, #000 15%, transparent 78%);
  -webkit-mask-image: radial-gradient(ellipse 90% 70% at 50% 0%, #000 15%, transparent 78%);
  pointer-events: none;
}

.hero-glow {
  position: absolute;
  top: -220px;
  left: 50%;
  transform: translateX(-50%);
  width: 900px;
  height: 520px;
  background: radial-gradient(ellipse at center, rgba(13, 148, 136, 0.07), transparent 68%);
  pointer-events: none;
}

.hero-inner { position: relative; }

.hero h1 { max-width: 19ch; margin-bottom: 0.55em; }
.hero-sub {
  font-size: clamp(1rem, 1.35vw, 1.12rem);
  color: var(--txt-2);
  max-width: 62ch;
  margin-bottom: 2.2em;
}

.hero-cta {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-bottom: 2.6em;
}

.hero-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 26px;
  padding-bottom: 2.6em;
  margin-bottom: 2.4em;
  border-bottom: 1px solid var(--line-soft);
}
.hero-badges li {
  display: flex;
  align-items: center;
  gap: 9px;
  font-size: 0.87rem;
  color: var(--txt-2);
}
.hero-badges i { color: var(--accent); font-size: 0.82rem; }

.stats-strip {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  margin: 0;
}
.stat dt {
  font-family: var(--font-mono);
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--txt-0);
  letter-spacing: -0.01em;
  margin-bottom: 4px;
}
.stat dt.stat-mono { font-size: 0.92rem; color: var(--accent); letter-spacing: 0; }
.stat dd {
  margin: 0;
  font-size: 0.8rem;
  color: var(--txt-3);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

/* ---------- 7. Secciones ---------- */
.section { padding: 84px 0; border-bottom: 1px solid var(--line-soft); }
.section-alt { background: var(--bg-1); }

.section-head { max-width: 780px; margin-bottom: 52px; }
.section-head h2 { margin-bottom: 0.7em; }

/* ---------- 8. Tarjetas de capacidades ---------- */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 1px;
  background: var(--line-soft);
  border: 1px solid var(--line-soft);
  border-radius: var(--radius);
  overflow: hidden;
}

.card {
  background: var(--bg-0);
  padding: 32px 28px;
  position: relative;
  transition: background 0.28s var(--ease);
}
.card::after {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  height: 2px;
  width: 0;
  background: var(--accent);
  transition: width 0.4s var(--ease);
}
.card:hover { background: var(--bg-2); }
.card:hover::after { width: 100%; }

.card-index {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--accent-dim);  letter-spacing: 0.1em;
  display: block;
  margin-bottom: 16px;
}
.card h3 { margin-bottom: 0.55em; font-size: 1.08rem; }
.card p { font-size: 0.91rem; color: var(--txt-2); line-height: 1.6; }

/* ---------- 9. Metodología ---------- */
.phase-list {
  display: grid;
  gap: 1px;
  background: var(--line-soft);
  border: 1px solid var(--line-soft);
  border-radius: var(--radius);
  overflow: hidden;
  margin-bottom: 48px;
}
.phase {
  display: flex;
  gap: 26px;
  background: var(--bg-0);
  padding: 26px 30px;
  align-items: flex-start;
  transition: background 0.25s var(--ease);
}
.phase:hover { background: var(--accent-soft); }
.phase-num {
  font-family: var(--font-mono);
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--accent);
  flex-shrink: 0;
  width: 44px;
  padding-top: 2px;
}
.phase-body h3 { margin-bottom: 0.4em; font-size: 1.02rem; }
.phase-body p { font-size: 0.91rem; color: var(--txt-2); max-width: 76ch; }

.frameworks {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 26px 30px;
  background: linear-gradient(180deg, rgba(13, 148, 136, 0.045), transparent);
  box-shadow: var(--shadow-sm);
}
.frameworks-label {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--txt-3);
  margin-bottom: 16px;
}
.tag-list { display: flex; flex-wrap: wrap; gap: 9px; margin-bottom: 16px; }
.tag-list li {
  font-family: var(--font-mono);
  font-size: 0.76rem;
  color: var(--accent-dim);
  background: var(--accent-soft);
  border: 1px solid rgba(13, 148, 136, 0.24);
  border-radius: 999px;
  padding: 5px 14px;
}
.frameworks-note { font-size: 0.79rem; color: var(--txt-3); margin: 0; font-style: italic; }

/* ---------- 10. Gráficos ---------- */
.chart-grid {
  display: grid;
  /* Regla explícita de una columna que pasa a dos en pantallas anchas.
     Se evita 'auto-fit' porque crea pistas de más que colapsan a 0 px y
     hacen que el ancho de cada gráfico dependa del cálculo del navegador:
     verificado midiendo el DOM (producía 'columnas=553px 553px 0px'). */
  grid-template-columns: 1fr;
  gap: 26px;
  margin-bottom: 26px;
}

.chart-panel {
  margin: 0;
  /* En CSS Grid los hijos tienen min-width:auto, lo que impide que la columna
     se encoja por debajo del ancho del lienzo de ECharts y provoca desborde.
     min-width:0 lo corrige de raíz. */
  min-width: 0;
  background: var(--bg-0);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 26px 24px 18px;
  box-shadow: var(--shadow-sm);
}

.chart-canvas { width: 100%; min-width: 0; }
.chart-panel figcaption { margin-bottom: 18px; }
.chart-panel h3 { font-size: 1rem; margin-bottom: 0.45em; }
.chart-panel p { font-size: 0.85rem; color: var(--txt-3); margin: 0; line-height: 1.55; }

.chart-canvas { width: 100%; }

.disclaimer {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  font-size: 0.82rem;
  color: var(--txt-3);
  border-left: 2px solid var(--line-bright);
  padding: 4px 0 4px 16px;
  margin: 0;
  max-width: 92ch;
}
.disclaimer i { color: var(--txt-3); margin-top: 4px; }

/* ---------- 11. Entregables ---------- */
.deliverable-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(290px, 1fr));
  gap: 22px;
}
.deliverable {
  background: var(--bg-0);
  border: 1px solid var(--line-soft);
  border-radius: var(--radius);
  padding: 28px 26px;
  box-shadow: var(--shadow-sm);
  transition: border-color 0.25s var(--ease), transform 0.25s var(--ease), box-shadow 0.25s var(--ease);
}
.deliverable:hover { border-color: var(--line-bright); transform: translateY(-2px); box-shadow: var(--shadow-md); }
.deliverable i {
  color: var(--accent);
  font-size: 1.15rem;
  margin-bottom: 18px;
  display: block;
}
.deliverable h3 { font-size: 1rem; margin-bottom: 0.5em; }
.deliverable p { font-size: 0.89rem; color: var(--txt-2); }

/* ---------- 12. Modelo de trabajo ---------- */
.step-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(210px, 1fr));
  gap: 22px;
}
.step {
  border-top: 2px solid var(--accent-dim);
  padding-top: 22px;
}
.step-num {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  color: var(--accent);
  display: block;
  margin-bottom: 12px;
}
.step h3 { font-size: 0.99rem; margin-bottom: 0.5em; }
.step p { font-size: 0.86rem; color: var(--txt-2); }

/* ---------- 13. Contacto ---------- */
.contact-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.35fr) minmax(0, 1fr);
  gap: 32px;
  align-items: start;
}

.contact-form {
  background: var(--bg-0);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 32px 30px;
  box-shadow: var(--shadow-sm);
}
.form-title {
  font-size: 0.75rem;
  font-family: var(--font-mono);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--txt-3);
  margin-bottom: 26px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--line-soft);
  font-weight: 500;
}

.field-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
}
.field { margin-bottom: 18px; display: flex; flex-direction: column; }

.field label {
  font-size: 0.79rem;
  font-weight: 500;
  color: var(--txt-2);
  margin-bottom: 7px;
  letter-spacing: 0.02em;
}

.field input,
.field select,
.field textarea {
  width: 100%;
  background: var(--bg-1);
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  color: var(--txt-0);
  font-family: var(--font-sans);
  font-size: 0.92rem;
  padding: 11px 13px;
  transition: border-color 0.2s var(--ease), background 0.2s var(--ease);
}
.field textarea { resize: vertical; min-height: 110px; line-height: 1.55; }
.field select {
  appearance: none;
  -webkit-appearance: none;
  background-image: url("data:image/svg+xml;charset=UTF-8,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='%2355637e'%3E%3Cpath d='M4 6l4 4 4-4z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 12px center;
  background-size: 15px;
  padding-right: 36px;
  cursor: pointer;
}
.field select option { background: var(--bg-1); color: var(--txt-0); }

.field input:focus,
.field select:focus,
.field textarea:focus {
  outline: none;
  border-color: var(--accent);
  background: var(--bg-2);
}

.field input::placeholder,
.field textarea::placeholder { color: var(--txt-3); }

.field-hint { font-size: 0.76rem; color: var(--txt-3); margin: 7px 0 0; line-height: 1.5; }

.field input.invalid,
.field select.invalid,
.field textarea.invalid { border-color: var(--alert); }

.field-consent { margin-bottom: 22px; }
.check {
  display: flex;
  align-items: flex-start;
  gap: 11px;
  font-size: 0.83rem;
  color: var(--txt-2);
  line-height: 1.55;
  cursor: pointer;
}
.check input {
  width: 17px;
  height: 17px;
  flex-shrink: 0;
  margin-top: 2px;
  accent-color: var(--accent);
  cursor: pointer;
}

.form-feedback {
  margin-top: 18px;
  padding: 14px 16px;
  border-radius: var(--radius-sm);
  font-size: 0.86rem;
  line-height: 1.55;
}
.form-feedback.is-ok {
  background: var(--accent-soft);
  border: 1px solid rgba(13, 148, 136, 0.28);
  color: #0b5f57;
}
.form-feedback.is-error {
  background: #fef2f2;
  border: 1px solid #fecaca;
  color: #b91c1c;
}

/* Columna lateral */
.contact-aside { display: flex; flex-direction: column; gap: 20px; }
.contact-aside > h3 {
  font-size: 0.75rem;
  font-family: var(--font-mono);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--txt-3);
  font-weight: 500;
  margin: 0;
}

.channel-list {
  display: flex;
  flex-direction: column;
  gap: 1px;
  background: var(--line-soft);
  border: 1px solid var(--line-soft);
  border-radius: var(--radius);
  overflow: hidden;
}
.channel-list li {
  display: flex;
  align-items: flex-start;
  gap: 15px;
  padding: 17px 20px;
  background: var(--bg-0);
}
.channel-list i {
  color: var(--accent);
  font-size: 0.95rem;
  width: 20px;
  text-align: center;
  padding-top: 3px;
  flex-shrink: 0;
}
.channel-list div { display: flex; flex-direction: column; gap: 2px; min-width: 0; }
.channel-label {
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--txt-3);
}
.channel-list a,
.channel-list div > span:last-child {
  font-size: 0.9rem;
  color: var(--txt-0);
  word-break: break-word;
}
.channel-list a:hover { color: var(--accent); }

.notice {
  border: 1px solid var(--line);
  border-left: 2px solid var(--accent);
  border-radius: var(--radius-sm);
  padding: 18px 20px;
  background: linear-gradient(90deg, rgba(13, 148, 136, 0.05), transparent);
}
.notice-alt { border-left-color: var(--signal); background: linear-gradient(90deg, rgba(37, 99, 235, 0.05), transparent); }
.notice-title {
  display: flex;
  align-items: center;
  gap: 9px;
  font-size: 0.79rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--txt-0);
  margin-bottom: 9px;
}
.notice-title i { color: var(--accent); font-size: 0.82rem; }
.notice-alt .notice-title i { color: var(--signal); }
.notice p { font-size: 0.85rem; color: var(--txt-2); line-height: 1.6; }

/* ---------- 14. Pie de página ---------- */
.site-footer {
  padding: 52px 0 40px;
  background: var(--bg-0);
}
.footer-inner {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(0, 1.6fr);
  gap: 34px 48px;
  align-items: start;
}
.footer-logo {
  height: 34px;
  width: auto;
  margin-bottom: 16px;
}
.footer-brand p { font-size: 0.85rem; color: var(--txt-3); max-width: 42ch; }

.footer-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 24px;
  justify-content: flex-end;
}
.footer-nav a { font-size: 0.85rem; color: var(--txt-2); }
.footer-nav a:hover { color: var(--accent); }

.footer-legal {
  grid-column: 1 / -1;
  font-size: 0.78rem;
  color: var(--txt-3);
  border-top: 1px solid var(--line-soft);
  padding-top: 22px;
  margin: 0;
}

/* ---------- 14b. Aviso de privacidad ---------- */
.legal-wrap { max-width: 820px; }

.legal-back {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--txt-3);
  margin-bottom: 38px;
  transition: color 0.2s var(--ease);
}
.legal-back:hover { color: var(--accent); }
.legal-back i { font-size: 0.72rem; }

.legal-updated {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--txt-3);
  letter-spacing: 0.05em;
  margin: 0;
}

.legal-intro {
  font-size: 1rem;
  color: var(--txt-1);
  border-left: 2px solid var(--accent);
  padding-left: 20px;
  margin-bottom: 46px;
  line-height: 1.7;
}

.legal-block {
  padding-bottom: 28px;
  margin-bottom: 28px;
  border-bottom: 1px solid var(--line-soft);
}
.legal-block:last-of-type { border-bottom: 0; }
.legal-block h2 {
  font-size: 1.02rem;
  margin-bottom: 0.7em;
  color: var(--txt-0);
}
.legal-block p {
  font-size: 0.94rem;
  color: var(--txt-2);
  line-height: 1.72;
  margin: 0;
}

.legal-contact { margin-top: 8px; }

@media (max-width: 720px) {
  .legal-intro { padding-left: 16px; margin-bottom: 34px; }
  .legal-block { padding-bottom: 22px; margin-bottom: 22px; }
}

/* ---------- 15. Responsive ---------- */
@media (min-width: 861px) {
  .chart-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 1024px) {
  .nav-desktop { display: none; }
  .nav-desktop.btn { display: none; }
  .menu-btn { display: flex; }
  .nav-mobile:not([hidden]) { display: flex; }
  .header-actions { margin-left: auto; }

  .contact-grid { grid-template-columns: 1fr; }
  .footer-inner { grid-template-columns: 1fr; }
  .footer-nav { justify-content: flex-start; }
}

@media (max-width: 720px) {
  :root { --header-h: 64px; }

  .wrap { padding: 0 18px; }
  .section { padding: 60px 0; }
  .hero { padding: 56px 0 48px; }
  .section-head { margin-bottom: 36px; }

  .brand-logo { height: 30px; }
  .footer-logo { height: 28px; }

  .hero h1 { max-width: none; }
  .hero-cta { flex-direction: column; align-items: stretch; }
  .hero-cta .btn { width: 100%; }
  .hero-badges { flex-direction: column; gap: 12px; }

  .stats-strip { grid-template-columns: 1fr 1fr; gap: 20px 16px; }
  .stat dt { font-size: 1.28rem; }
  .stat dt.stat-mono { font-size: 0.82rem; }

  .card-grid,
  .deliverable-grid,
  .step-grid,
  .chart-grid { grid-template-columns: 1fr; }

  .phase { gap: 16px; padding: 22px 20px; flex-direction: column; }
  .phase-num { width: auto; }

  .frameworks { padding: 22px 20px; }

  .chart-panel { padding: 22px 18px 14px; }
  .chart-canvas { height: 330px !important; }

  .contact-form { padding: 26px 20px; }
  .field-row { grid-template-columns: 1fr; gap: 0; }

  .footer-nav { gap: 10px 18px; }
}

@media (max-width: 400px) {
  .stats-strip { grid-template-columns: 1fr; }
  .header-actions { gap: 9px; }
  .lang-btn { padding: 7px 9px; }
}

/* ---------- 16. Accesibilidad: movimiento reducido ---------- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
}

/* ---------- 17. Impresión ---------- */
@media print {
  .site-header, .nav-mobile, .menu-btn, .hero-grid-bg, .hero-glow { display: none; }
  body { background: #fff; }
  .section-alt, .chart-panel, .deliverable, .contact-form { background: #fff; box-shadow: none; }
}